EP0982544A1 - Brenneranordnung für eine Gasturbine - Google Patents
Brenneranordnung für eine Gasturbine Download PDFInfo
- Publication number
- EP0982544A1 EP0982544A1 EP98810851A EP98810851A EP0982544A1 EP 0982544 A1 EP0982544 A1 EP 0982544A1 EP 98810851 A EP98810851 A EP 98810851A EP 98810851 A EP98810851 A EP 98810851A EP 0982544 A1 EP0982544 A1 EP 0982544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- housing
- wall
- burner arrangement
- partition plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/02—Baffles or deflectors for air or combustion products; Flame shields in air inlets
Definitions
- the present invention relates to the field of gas turbine technology.
- she relates to a burner arrangement for a gas turbine, which burner arrangement comprises an interior enclosed by a housing, in which interior at least one burner is arranged, and in which interior by at least two nozzle openings against the flow direction of the burner and along the inner wall of the housing a jet of a gaseous one Medium, especially air, is injected, which rays through the inner wall led from opposite directions to meet and to a secondary flow flowing perpendicularly from the inner wall.
- Such a burner arrangement is e.g. from the publication EP-A2-0 692 675 (see e.g. FIG. 1 there).
- the speed of the beams 15, 16 goes to zero. Because the wall flow lines of the two beams 15 and 16 meet at the stagnation point 18, the total pressures of jets 15 and 16 must also match there. Because the friction on the boundary wall 12 typically does not become one leads to rapid change in the total pressure, the point of impact 18 becomes regular close to one of the two nozzle openings 13, 14, which the Generate rays 13, 14. In extreme cases, even one of the beams 15, 16 can Block the nozzle opening that is to generate the other jet. Even in the Cases in which the total pressures of the two jets are almost the same give way the position of the point of impact usually strongly depends on the plane of symmetry runs between the two nozzle openings.
- the Burner 21 (in this case a double cone burner of known design) is in one Symmetry plane 19 housed lying in a housing 23.
- the burner 21 opens to the left into a combustion chamber 33; from the right it is over a Fuel supply 32 supplied with fuel.
- Between the combustion chamber 33 and the housing 23 has nozzle openings 24 and 25 at the top and bottom, through which combustion air (from the compressor of the gas turbine) in shape of jets 26, 27 are injected into the interior 22 enclosed by the housing 23 becomes.
- the rays 26, 27 flow on the inner wall 23a of the housing 23 along towards each other and unite into one after the meeting Secondary flow 28, which flows towards the burner 21 and laterally into the burner 21 entry.
- the point of impact and thus the Secondary flow usually on a changing, not predictable Point outside the plane of symmetry, which is characterized by geometric disturbances in the arrangement and pressure fluctuations can change quickly.
- the smooth operation of the burner 21 under stable burning conditions significantly affected.
- the object is achieved in a burner arrangement of the type mentioned solved that to determine the point of impact of the rays in the Flow path of the jets arranged, essentially perpendicular to the inner wall standing partition plate is provided.
- the two rays hit from both Sides on the fixed partition plate and are parallel to the partition plate diverted into the interior, where it forms a secondary flow behind the partition plate unite, which flows parallel to the partition plate.
- the secondary flow can vary Place the housing and be generated with different directions.
- a preferred embodiment of the invention is characterized in that that the burner is arranged within the housing in a plane of symmetry is that the nozzle openings are arranged symmetrically to the plane of symmetry are, and that the partition plate lies in the plane of symmetry.
- FIG. 3 Embodiment of the burner assembly according to the invention reproduced.
- the same parts of the arrangement are provided with the same reference numerals as in Fig. 2.
- Essential for the invention is the insertion of a partition plate 29 in the burner assembly.
- the separating plate 20 lies in the exemplary embodiment in FIG. 3 in the plane of symmetry 19 and can therefore only be seen from the side.
- the partition plate 29 is perpendicular to the inner wall 23a of the housing 23 and is on this Place preferably fixed to the inner wall 23a, e.g. welded on or screwed on.
- the partition plate 29 can be directly on the inner wall without difficulty 23a of the housing 23 are attached.
- the access opening 31 can be closed by a corresponding (disk-shaped) cover is, the partition plate 29 can advantageously on the inside of the cover 30 are arranged and attached.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
- Fig. 1
- In einer schematischen Darstellung eine prinzipielle Strömungsanordnung mit zwei Wandgeführten, in einem Auftreffpunkt aufeinandertreffenden Strömungen;
- Fig. 2
- eine schematische Darstellung einer Brenneranordnung mit innerhalb eines Gehäuses geführten Strahlen (Jets) von Verbrennungsluft nach dem Stand der Technik;
- Fig. 3
- ein erstes bevorzugtes Ausführungsbeispiel einer Brenneranordnung nach der Erfindung mit einer direkt am Gehäuse befestigten Trennplatte; und
- Fig. 4A,B
- ein zweites bevorzugtes Ausführungsbeispiel einer Brenneranordnung nach der Erfindung mit einem auswechselbaren Brenner in Seitenansicht (Fig. 4A), bei welcher Brenneranordnung die Trennplatte an einer Abdeckung einer Zugangsöffnung für den Brenner befestigt ist (Draufsicht auf die Abdeckung mit der Trennplatte in Fig. 4B).
- 10
- Strömungsanordnung
- 11
- Innenraum
- 12
- Begrenzungswand
- 13,14
- Düsenöffnung
- 15,16
- Strahl
- 17
- Sekundärströmung
- 18
- Auftreffpunkt
- 19
- Symmetrieebene
- 20
- Brenneranordnung
- 21
- Brenner
- 22
- Innenraum
- 23
- Gehäuse
- 23a
- Innenwand (Gehäuse)
- 24,25
- Düsenöffnung
- 26,27
- Strahl
- 28
- Sekundärströmung
- 28a,b
- Teilströmung
- 29
- Trennplatte
- 30
- Abdeckung
- 31
- Zugangsöffnung
- 32
- Brennstoffzufuhr
- 33
- Brennkammer
Claims (6)
- Brenneranordnung (20) für eine Gasturbine, welche Brenneranordnung (20) einen von einem Gehäuse (23) umschlossenen Innenraum (22) umfasst, in welchem Innenraum (22) wenigstens ein Brenner (21) angeordnet ist, und in welchen Innenraum (22) durch wenigstens zwei Düsenöffnungen (24, 25) entgegen der Strömungsrichtung des Brenners (21) und entlang der Innenwand (23a) des Gehäuses (23) jeweils ein Strahl (26, 27) eines gasförmigen Mediums, insbesondere Luft, eingedüst wird, welche Strahlen (26, 27) durch die Innenwand (23a) geführt aus entgegengesetzten Richtungen aufeinandertreffen und sich zu einer senkrecht oder quasi-senkrecht von der Innenwand (23a) abströmenden Sekundärströmung (28) vereinigen, dadurch gekennzeichnet, dass zur Festlegung des Auftreffpunktes der Strahlen (26, 27) eine im Strömungsweg der Strahlen (26, 27) angeordnete, im wesentlichen senkrecht zur Innenwand (23a) stehenden Trennplatte (29) vorgesehen ist.
- Brenneranordnung nach Anspruch 1, dadurch gekennzeichnet, dass der Brenner (21) innerhalb des Gehäuses (23) in einer Symmetrieebene (19) angeordnet ist, dass die Düsenöffnungen (24, 25) symmetrisch zu der Symmetrieebene (19) angeordnet sind, und dass die Trennplatte (29) in der Symmetrieebene (19) liegt.
- Brenneranordnung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Trennplatte (29) direkt am Gehäuse (23) befestigt ist.
- Brenneranordnung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass der Brenner (21) innerhalb des Gehäuses (23) auswechselbar ausgebildet ist, dass im Gehäuse (23) eine Zugangsöffnung (31) zum Herausziehen bzw. Hineinstecken des Brenners (21) vorgesehen ist, welche Zugangsöffnung (31) durch eine Abdeckung (30) verschliessbar ist, und dass die Trennplatte (29) an der Abdeckung (30) befestigt ist.
- Brenneranordnung nach Anspruch 1, dadurch gekennzeichnet, dass die aufeinandertreffenden Strahlen (26, 27) radial oder quasi-radial von der Innenwand (23a) die Sekundärströmung (28) bilden.
- Brenneranordnung nach Anspruch 1, dadurch gekennzeichnet, dass die stehende Trennplatte (29) radial oder quasi-radial verläuft.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59808762T DE59808762D1 (de) | 1998-08-27 | 1998-08-27 | Brenneranordnung für eine Gasturbine |
EP98810851A EP0982544B1 (de) | 1998-08-27 | 1998-08-27 | Brenneranordnung für eine Gasturbine |
US09/369,836 US6209327B1 (en) | 1998-08-27 | 1999-08-09 | Burner arrangement for a gas turbine including an inlet-air impingement plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98810851A EP0982544B1 (de) | 1998-08-27 | 1998-08-27 | Brenneranordnung für eine Gasturbine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0982544A1 true EP0982544A1 (de) | 2000-03-01 |
EP0982544B1 EP0982544B1 (de) | 2003-06-18 |
Family
ID=8236287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98810851A Expired - Lifetime EP0982544B1 (de) | 1998-08-27 | 1998-08-27 | Brenneranordnung für eine Gasturbine |
Country Status (3)
Country | Link |
---|---|
US (1) | US6209327B1 (de) |
EP (1) | EP0982544B1 (de) |
DE (1) | DE59808762D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014143239A1 (en) | 2013-03-13 | 2014-09-18 | Rolls-Royce Canada, Ltd. | Lean azimuthal flame combustor |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2422904A1 (fr) * | 1978-04-10 | 1979-11-09 | Narva Rosa Luxemburg K | Chambre de combustion a tres grande puissance |
EP0252315A1 (de) * | 1986-07-08 | 1988-01-13 | BBC Brown Boveri AG | Brennkammereinrichtung mit einer Vorbrennkammer für unterstöchiometrische Verbrennung |
JPH05223109A (ja) * | 1992-02-13 | 1993-08-31 | Hitachi Ltd | 整流ダクト |
EP0692675A2 (de) | 1994-07-13 | 1996-01-17 | Abb Research Ltd. | Verfahren und Vorrichtung zum Betreiben eines kombinierten Brenners für flüssige und gasförmige Brennstoffe |
DE4436728A1 (de) * | 1994-10-14 | 1996-04-18 | Abb Research Ltd | Verfahren und Vorrichtung für eine schadstoffarme gestufte Verbrennung |
EP0742411A2 (de) * | 1995-05-08 | 1996-11-13 | ABB Management AG | Luftzuströmung zu einer Vormischbrennkammer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446945B4 (de) * | 1994-12-28 | 2005-03-17 | Alstom | Gasbetriebener Vormischbrenner |
-
1998
- 1998-08-27 DE DE59808762T patent/DE59808762D1/de not_active Expired - Lifetime
- 1998-08-27 EP EP98810851A patent/EP0982544B1/de not_active Expired - Lifetime
-
1999
- 1999-08-09 US US09/369,836 patent/US6209327B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2422904A1 (fr) * | 1978-04-10 | 1979-11-09 | Narva Rosa Luxemburg K | Chambre de combustion a tres grande puissance |
EP0252315A1 (de) * | 1986-07-08 | 1988-01-13 | BBC Brown Boveri AG | Brennkammereinrichtung mit einer Vorbrennkammer für unterstöchiometrische Verbrennung |
JPH05223109A (ja) * | 1992-02-13 | 1993-08-31 | Hitachi Ltd | 整流ダクト |
EP0692675A2 (de) | 1994-07-13 | 1996-01-17 | Abb Research Ltd. | Verfahren und Vorrichtung zum Betreiben eines kombinierten Brenners für flüssige und gasförmige Brennstoffe |
DE4436728A1 (de) * | 1994-10-14 | 1996-04-18 | Abb Research Ltd | Verfahren und Vorrichtung für eine schadstoffarme gestufte Verbrennung |
EP0742411A2 (de) * | 1995-05-08 | 1996-11-13 | ABB Management AG | Luftzuströmung zu einer Vormischbrennkammer |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 017, no. 671 (M - 1525) 10 December 1993 (1993-12-10) * |
Also Published As
Publication number | Publication date |
---|---|
US6209327B1 (en) | 2001-04-03 |
DE59808762D1 (de) | 2003-07-24 |
EP0982544B1 (de) | 2003-06-18 |
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